dennis stanworth was first sentenced to death in 1966 for murdering two teenage girls. after california did away with the death sentence, his sentence was changed to life in prison. >> i am worried about our system, him getting out again. but i have a gun and i know how to use it. >> reporter: this time police say sanworth killed his mother in his own home. he said he called 911 and then turned himself in. >>> a potentially dangerous reptile guarding a stash of marijuana has died. the reptile was a 16-year-old cayman which closely resembles an alligator. the oakland zoo took it in yesterday and said it was in very poor health. alameda county sheriff deputies found the cayman in a home along with marijuana. the owner faces animal abuse charges. >>> a case of bullying is said to be the motive for school shooting in central california. authorities in the town of taft in kern county says a student entered a class, and opened fire. the current county sheriff says the teen targeted students who had bullied him for several years. a teacher finally talked him into dropping his